The Rebels were all later captured by Vader, who then changed elements of the deal concerning the prisoners with Calrissian.[2] This angered Calrissian, and caused him to secretly back out of the deal, deciding to help the Rebels instead.[2] Using the order "Code Force Seven",[5] he made Lobot aware of the change of plans, after which the aide gathered twelve guardsmen[6] including Jeihn, Selis, Spinoza, Pedar Solardo, Gir Endac and Razell Tameron.[1] The group cut off a squad of six Imperials lead by LieutenantSheckil, and accompanied by Calrissian, who were escorting three of the Rebel prisoners to Vader's personal shuttle. The guards and Lobot drew their blasters on the outnumbered Imperials, who surrendered, allowing Calrissian to free the prisoners. The Baron Administrator then ordered that the Imperials be quietly taken to the Cloud City Security Tower, which the Wing Guard used as a detention center, as to not raise suspicion in the other Imperials. After Jeihn and the other Guardsmen escorted the Imperials away, Calrissian and the other Rebels made their escape, although this left Cloud City under the control of the Empire.[2]

Corman Jeihn was a light skinned Human with black hair.[2] He was not involved in the corruption that had swelled within the Wing Guards ranks under the Baron Administrator who served before Calrissian, Dominic Raynor.[7]

Corman Jeihn first appeared in Star Wars: Episode V The Empire Strikes Back in which he was portrayed by an uncredited extra. He received no name in the film,[2] but appeared in various merchandise which included stills from it.[8][9][10] Both the 1980Marvel Comics adaptation and the 1999manga adaptation of Episode V, included both scenes in which Jeihn was present. The landing platform scene is shown in the fifth issue of the Marvel adaptation and the third issue of the manga. In the scene, both adaptations show a guardsman standing in the same location behind Calrissian that Jeihn occupies, although in the manga comic book he is illustrated by Toshiki Kudo as having a moustache.[11][12]